4 men of the 4th Yorks Battalion.
The only one identified is Henry Bennison, standing on the right.
He was wounded and became a prisoner of War.
After the War he married and had a family, but was killed in 1940 by a fall of stone while working as a Deputy in the Ironstone Mine at Carlin How, N Yorks.
[Photo kindly contributed by Michael Bennison of Ayrshire.]

18th MAY. The Division marched East again.
Diary - Another night was spent at that pied a terre Bayencourt [perhaps less sanitary than villages should be] and Douchy Les Ayette was reached after a hot march on the 19th.
Here in spite of one night of torrential rain, a happy five days were spent.
Orchards, in spite of Teutonic hatchets, were in full bloom; good baths were constructed; rich pasture for horses;
trenches and strongpoints and fair terrains for the rest of us thronged manifold.
A city of bivouacs appeared and was relinquished with sorrow for the smells and verminous farmyards of Bayencourt, where the remainder of the month was spent.
Whilst estaminets are few, buildings ruinous and the feminine element singularly distant;
all which things are for the good of training.
Several drafts were received during this month. Some returned men, some from the reserve battalion at Catterick and others from regular and service battalions of the Regiment.
Physique and intelligence above the average of the preceding 4 months.
The health of the Btn throughout the month above average.
Effective strength at start of month was 19 Officers and 610 other ranks. On the 31st it was 28 Officers and 705 Other ranks.